Eric Lee / smarc-uboot

21 Aug, 2013

1 commit

  • 997399fa4   powerpc: Fix CamelCase checkpatch warnings ... Browse Code »

    85xx, 86xx PowerPC folders have code variables with CamelCase naming conventions.
    because of this code checkpatch script generates "WARNING: Avoid CamelCase".

    Convert variables name to normal naming convention and modify board, driver
    files with updated the new structure.

    Signed-off-by: Prabhakar Kushwaha
    Acked-by: York Sun

    Prabhakar Kushwaha
     

10 Oct, 2011

1 commit

  • 1605cc9e1   powerpc/mpc86xx: Disable translation for BAT setup ... Browse Code »

    We really shouldn't be overwriting bat registers with translation enabled,
    especially when we're executing code using one of them for translating
    the current instruction stream. Instead, disable address translation
    while doing the final BAT setup.

    In order to do this, setup_bats has to move back to asm code, because we
    require translation to be enabled to have a stack for C code. The yucky
    thing about that is that the assembler doesn't like ULL so we have to
    switch to using HIGH/LOW pairs for physical addresses that are > 32 bits
    in length.

    Signed-off-by: Becky Bruce
    Acked-by: York Sun
    Signed-off-by: Kumar Gala

    Becky Bruce
     

30 Mar, 2010

1 commit

  • 9ff32d8cc   mpc86xx: set the DDR BATs after calculating true DDR size ... Browse Code »

    After determining how much DDR is actually in the system, set DBAT0 and
    IBAT0 accordingly. This ensures that the CPU won't attempt to access
    (via speculation) addresses outside of actual memory.

    On 86xx systems, DBAT0 and IBAT0 (the BATs for DDR) are initialized to 2GB
    and kept that way. If the system has less than 2GB of memory (typical for
    an MPC8610 HPCD), the CPU may attempt to access this memory during
    speculation. The zlib code is notorious for generating such memory reads,
    and indeed on the MPC8610, uncompressing the Linux kernel causes a machine
    check (without this patch).

    Currently we are limited to power of two sized DDR since we only use a
    single bat. If a non-power of two size is used that is less than
    CONFIG_MAX_MEM_MAPPED u-boot will crash.

    Signed-off-by: Timur Tabi
    Signed-off-by: Kumar Gala

    Timur Tabi
     

10 Feb, 2009

1 commit

  • d35ae5a93   powerpc: Move duplicated BAT defines to mmu.h ... Browse Code »

    The BAT fields are architected; there's no need for these to be in
    cpu-specific files. Drop the duplication and move these to
    include/asm-ppc/mmu.h. Also, remove the BL_xxx defines that were only
    used by the alaska board, and switch to using the BATU_BL_xxx defines
    used by all the other boards. The BL_ defines previously in use
    had to be shifted into the proper position for use, which was inefficient.

    Signed-off-by: Becky Bruce

    Becky Bruce
     

20 Dec, 2008

1 commit

  • ada591d2a   mpc8[56]xx: Put localbus clock in sysinfo and gd ... Browse Code »

    Currently MPC85xx and MPC86xx boards just calculate the localbus frequency
    and print it out, but don't save it.

    This changes where its calculated and stored to be more consistent with the
    CPU, CCB, TB, and DDR frequencies and the MPC83xx localbus clock.

    The localbus frequency is added to sysinfo and calculated when sysinfo is
    set up, in cpu/mpc8[56]xx/speed.c, the same as the other frequencies are.

    get_clocks() copies the frequency into the global data, as the other
    frequencies are, into a new field that is only enabled for MPC85xx and
    MPC86xx.

    checkcpu() in cpu/mpc8[56]xx/cpu.c will print out the local bus frequency
    from sysinfo, like the other frequencies, instead of calculating it on the
    spot.

    Signed-off-by: Trent Piepho
    Acked-by: Kumar Gala
    Acked-by: Jon Loeliger

    Trent Piepho
     

19 Oct, 2008

1 commit

11 Jun, 2008

1 commit

22 Jun, 2007

1 commit

02 May, 2007

1 commit

23 Aug, 2006

1 commit

27 Apr, 2006

2 commits